Depends if you take your time to explore and do lots of side quests, talk to NPCs you meet, read books, info about items and such.... Or if you're just rushing through to do the main quest.

Myself, I took my time exploring and doing many side-quests along the way, and my first play-through took me around 50+ hours. Then I played through "The Black Pits", I think took me around 4+ hours. Now I'm playing through the main-game again, using some different characters in my party than last time, and also looking to do any side-quests I may have missed on my first play-through.

So, you can sink in a lot of hours into this game if you aren't in a rush to do just the main quests.

I have played this game many times. Only the EE once, but on my most recent playthrough, trying to be as throrough as possible, I played for a little more than 40 hours. Keep in mind, though, that I already understood what to do and how to do most things. SOmeone without more experience would likely take much longer.

I've never been able to measure how long a game took before, since the game itself doesn't, but now steam does. have yet to complete it on steam, but if I were to guess I would say ~40+hours. it's not like a TES game, where you can spend hundreds of hours on one character, but it's still pretty substantial, especially compared to modern games that are almost ALWAYS released half-finished and/or extremely short.

As the others mentioned, it depends. I played the game for months originally, trying out the various NPC combinations (some interactions are very unexpected, some characters are just blah). The best part is that the modding community is STILL turning out stuff for this series.